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Green Nanochemistry: Metal Oxide Nanoparticles and Porous Thin Films from Bare Metal Powders
Author(s) -
Redel Engelbert,
Petrov Srebri,
Dag Ömer,
Moir Jonathon,
Huai Chen,
Mirtchev Peter,
Ozin Geoffrey A.
Publication year - 2012
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201101596
Subject(s) - nanochemistry , materials science , nanoporous , oxide , nanotechnology , dissolution , metal , aqueous solution , nanoparticle , micrometer , porosity , chemical engineering , noble metal , metallurgy , organic chemistry , composite material , chemistry , optics , physics , engineering
A universal, simple, robust, widely applicable and cost‐effective aqueous process is described for a controlled oxidative dissolution process of micrometer‐sized metal powders to form high‐purity aqueous dispersions of colloidally stable 3–8 nm metal oxide nanoparticles. Their utilization for making single and multilayer optically transparent high‐surface‐area nanoporous films is demonstrated. This facile synthesis is anticipated to find numerous applications in materials science, engineering, and nanomedicine.